Question

A train 180m long is running at a speed of 90 km/h. How long will it take to pass a railway signal

Answer 1

Speed = 90kmph = 25 m/s
Distance to cover = 180 m
Time taken to pass a railway signal = 180/25 = 7.2 seconds

Answer 2

Answer:  Train takes 7.2 seconds to pass a railway signal.

Step-by-step explanation:

Since we have given that

Length of train = 180 m

Speed of train = 90 km/ hr

As we know that length of railway signal is always consider to be 0.

So, Time taken by train to pass a railway signal is given by

$\dfrac{Distance}{Speed}=\dfrac{180}{90\times \dfrac{5}{18}}=\dfrac{180}{25}=7.2\ sec$

Hence, Train takes 7.2 seconds to pass a railway signal.